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Commit97d5f2e9ee("tools api fs: More thread safety for global filesystem variables") introduces pthread_once, so the libpthread should be added at link time, or we'll meet the following compile error when 'make -C tools/mm': gcc -Wall -Wextra -I../lib/ -o page-types page-types.c ../lib/api/libapi.a ~/linux/tools/lib/api/fs/fs.c:146: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:147: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:148: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:149: undefined reference to `pthread_once' ~/linux/tools/lib/api/fs/fs.c:150: undefined reference to `pthread_once' /usr/bin/ld: ../lib/api/libapi.a(libapi-in.o):~/linux/tools/lib/api/fs/fs.c:151: more undefined references to `pthread_once' follow collect2: error: ld returned 1 exit status make: *** [Makefile:22: page-types] Error 1 Link: https://lkml.kernel.org/r/20230831034205.2376653-1-xiexiuqi@huaweicloud.com Fixes:97d5f2e9ee("tools api fs: More thread safety for global filesystem variables") Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
33 lines
573 B
Makefile
33 lines
573 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Makefile for vm tools
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#
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include ../scripts/Makefile.include
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TARGETS=page-types slabinfo page_owner_sort
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LIB_DIR = ../lib/api
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LIBS = $(LIB_DIR)/libapi.a
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CFLAGS += -Wall -Wextra -I../lib/ -pthread
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LDFLAGS += $(LIBS) -pthread
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all: $(TARGETS)
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$(TARGETS): $(LIBS)
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$(LIBS):
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make -C $(LIB_DIR)
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%: %.c
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$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS)
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clean:
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$(RM) page-types slabinfo page_owner_sort
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make -C $(LIB_DIR) clean
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sbindir ?= /usr/sbin
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install: all
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install -d $(DESTDIR)$(sbindir)
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install -m 755 -p $(TARGETS) $(DESTDIR)$(sbindir)
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